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MHT CET 2026 (15 May, Shift 2) · Spring & Elastic Energy

Spring & Elastic Energy question from MHT CET 2026 (15 May, Shift 2)

Q4MHT CET 2026 · 15 MAY · SHIFT 2Medium

Spring & Elastic Energy

A sphere of mass $50$ gram is placed on a vertical spring. It is compressed by $0.4$ m using a force $10$ N. When the spring is released the sphere will reach to a height of ( $g = 10\text{ m/s}^2$ )

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Answer: (b)

$k = \frac{F}{x} = \frac{10}{0.4} = 25$ N/m
Stored energy $= \frac{1}{2}(25)(0.4)^2 = 2$ J
$mgh = 2 \Rightarrow h = \frac{2}{0.05 \times 10} = 4$ m
So the answer is (b) $4$ m.

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